why does my Tesla Model S Plaid/Refresh (2021-present) make a clicking noise when starting

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

495 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix the clicking noise during start-up in Tesla Model S Plaid. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the 12V battery before working on electrical systems.
•Use caution when handling high-voltage components in the battery system.

Symptoms

•Clicking noise when attempting to start the vehicle
•Dashboard lights flickering during start-up
•Lack of power to the vehicle's electrical systems
•Unable to start message on the display
•No engine cranking sound

Diagnostic Steps

1
Inspect the 12V battery for charge level and connection integrity.
2
Use an OBD-II scanner to check for any error codes related to the starting system.
3
Verify the condition of the main battery pack and its connections.
4
Check for any software updates or alerts in the Tesla mobile app.
5
Inspect the vehicle's fuses related to the starting system.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Multimeter
•Socket set
•Fuse puller

Parts Required

•12V battery (if replacement is necessary)
•Replacement fuses (if applicable)

Related Faults

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Diagnostic Steps

1
Inspect the 12V battery for charge level and connection integrity.
2
Use an OBD-II scanner to check for any error codes related to the starting system.
3
Verify the condition of the main battery pack and its connections.
4
Check for any software updates or alerts in the Tesla mobile app.
5
Inspect the vehicle's fuses related to the starting system.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is in a safe location and turned off.
Disconnect the 12V battery for safety.

2. Inspect and Test the 12V Battery

Sub-steps:
1. Remove the cover to access the 12V battery.
2. Check the battery voltage using a multimeter; it should be above 12.4V.
3. Tighten any loose connections on the battery terminals.
4. If the battery voltage is low, recharge or replace the battery as needed.
Tools Required: Multimeter, socket set.

3. Check Main Battery Connections

Sub-steps:
1. Inspect the high-voltage battery connections for any signs of corrosion or loose connections.
2. Ensure that all connectors are securely fastened.
3. If any connections are faulty, clean and reseat them.
Tools Required: Socket set, brush for cleaning.

4. Software Update

Sub-steps:
1. Connect the vehicle to Wi-Fi.
2. Check for any available software updates via the touchscreen.
3. Follow the instructions to install updates if available.
Tools Required: None, only access to the vehicle's Wi-Fi.

5. Replace Fuses if Necessary

Sub-steps:
1. Locate the fuse box and identify any blown fuses related to the starting system.
2. Replace blown fuses with the correct amperage rating.
3. Recheck the starting system after replacing fuses.
Tools Required: Fuse puller, replacement fuses.